Service Invoice Template Nigeria: Example for Consultants and Agencies
A service invoice should explain what was done, the period or milestone covered, the amount due and how the customer can pay. Clear descriptions reduce questions from the customer and shorten approval time.
Completed service invoice example
| Field | Example |
|---|---|
| Supplier | Kemi Strategy Partners |
| Invoice number | INV-2026-0112 |
| Customer | Redwood Foods Limited |
| Invoice date | 16 June 2026 |
| Due date | 30 June 2026 |
| Service | Market-entry research and strategy workshop |
| Service period | 1 to 12 June 2026 |
| Professional fee | ₦750,000 |
| Tax | Shown separately where applicable |
| Payment terms | 14 days by bank transfer |
Blank service invoice structure
Include:
- Your business name, address and contact details
- Customer's legal name and billing address
- Invoice number
- Invoice and due dates
- Project, contract or LPO reference
- Service description
- Billing period or completed milestone
- Fee, expenses, discount and tax
- Total amount due
- Payment instructions
- Notes and terms
Start with our free Nigerian invoice template or create the invoice online.
Write a useful service description
Avoid descriptions such as “professional services” with no context. A finance team needs to understand what it is approving.
Better examples:
- Monthly digital marketing management for June 2026
- Legal advisory services for supplier contract review
- Website design milestone 2: approved interface and mobile layouts
- Recruitment fee for successfully placed finance manager
- Training delivery for 25 employees on 10 June 2026
Hourly service invoice
Show the rate and time:
| Work | Hours | Rate | Amount |
|---|---|---|---|
| Research | 12 | ₦25,000 | ₦300,000 |
| Workshop | 4 | ₦50,000 | ₦200,000 |
Attach a timesheet if the contract requires one.
Retainer invoice
State the service period and what the retainer covers. For example: “Monthly communications retainer for 1 to 30 June 2026, covering up to 30 consulting hours.”
Recurring retainers should use a consistent billing date and invoice sequence. See our recurring-invoice guide.
Deposit and milestone invoice
If the project fee is ₦2,000,000 and the customer has paid a ₦600,000 deposit, show:
- Total project value: ₦2,000,000
- Deposit already paid: ₦600,000
- Current milestone: ₦800,000
- Future balance after this payment: ₦600,000
This gives both parties a clear account of the project.
VAT and withholding tax
Do not treat VAT and withholding tax as the same deduction. Confirm the tax treatment that applies to the supplier and service. If VAT applies, show the VAT calculation separately. Use the VAT calculator to check the arithmetic and read our withholding-tax guide for background.
Payment terms for service businesses
State:
- The due date.
- Accepted payment methods.
- Whether bank charges are deducted or paid separately.
- The process for raising a billing query.
- Any agreed deposit or milestone condition.
Frequently asked questions
Can a freelancer issue a service invoice?
Yes. Use your real trading details and describe the service accurately. Read the sole-trader invoice guide for more examples.
Should reimbursable expenses be included?
Show approved expenses separately and attach evidence where the agreement requires it.
Can I invoice before the service is completed?
You can request a deposit or agreed milestone payment. Label the amount and stage clearly so the customer understands what is due.